We're blown away by the support of the StartEngine community as we enter the final few weeks of our campaign. Thank you for accelerating our mission to create sustainable materials through cost-effective recycling. We wanted to share a few more answers to some of the recently received questions.
How are shredded batteries sorted by material? In particular, will copper/aluminum/steel be physically sorted?
Depending on the recycler, the importance of pre-sorting the shredded material varies. The battery chemistry sets the sale price of the slurry. Electric vehicle and grid storage batteries are our focus now, and we intend to shred the same type of battery chemistry in a batch. There may be various applications with similar battery chemistries that can be neutralized together.
For example, NCM/NCA is considered a type of slurry, and LFP is another type. There are other legacy chemistries, such as NiMH, and we consider it an alternate type.
Materials such as Copper, Al, and Steel are physically sorted through various stages in the Redi-Cycle or alternative recycling processes.
Is it possible to connect to a general physical sorting facility other than Redi-Cycle?
Yes, Redivivus has provided material samples to alternative recyclers to process the Redi-Shred slurry. Redi-Cycle was created to process and sort the Redi-Shred material specifically. However, each recycler may have a varying process. Redi-Cycle technology can be helpful to implement into an existing line or establish a new sorting facility.
We would be honored to work with existing facilities if they are interested in collaborating on sorting the slurry from Redi-Shred.
The Redi-Cycle process is summarized as an electro-mechanical agitation, cyclonic density separation, acid digestion and insoluble separation, re-precipitation for purification, and final acid digestion and electrowinning.
How is the electrolyte in the battery collected?
The cell electrolyte is neutralized into CO2 gas and carbonate precipitates during the Redi-Shred process. The lithium is recovered from the electrolyte.
What are the dimensions of the Redi-Shred trucks you plan to produce?
It will be the maximum size and weight of a Class 8 Truck. Heavy-duty 33,000lbs and above. This is the same type of truck that typically carries sea containers.
We plan to integrate the system into an electric vehicle's powertrain to assist with energy demands. Otherwise, a large generator would likely be needed, which would impact the available size and weight.
If the trucks are to be driven on public roads, what regulations will they have to meet in the U.S.?
Regulations will vary depending on state Department of Transportation rules. We intend to build to the most strict state regulations. There are also federal highway rules. Our design uses a scrubbed gas and vapor exit from the shredder enclosure that meets EPA standards.
Our transportation experts are familiar with regulations and have contacted logistics providers. To our knowledge, there are no laws tailored around this specific type of vehicle as it does not exist yet. We expect some growing pains around writing the rule book with the regulators. Our team has experience doing this in the past with electric aviation.
What would be the regulatory issues: risk of fire or explosion, or leakage of hazardous materials? Are there any other critical issues that should be considered?
The purpose of blast freezing first is to mitigate fire or explosions, especially with damaged, defective, or recalled batteries. The truck does not move until the material is neutralized (pH 7) for compliance. The truck operator will likely require special training or certification as batteries are most challenging to handle before freezing.
Other than compliance, we view weight as the biggest challenge for Redi-Shred. Depending on weight, specific jobs may require a chaser truck and placement of slurry into drums, in which case we would need to consider handling the material containers.
Funding through the Start Engine is now ~$540,000. Will the project be delayed or abandoned if it does not reach $1.07M?
We do not foresee the project being abandoned as the technology is needed. With the current funding, we can achieve our initial goals. However, the final amount will reflect our sizing of the pilot facility.
The change in our funding on StartEngine reflects an update to our material disclosures. We narrowed the scope of what we intend to do with the budget, and the team restructured, with Erik and Eric moving to advisor roles. Redivivus is blessed to have a large group of supporters and partners that help us move forward on our shared mission.
We are grateful that so many of you chose to reconfirm your investments and continue supporting us. Thank you!
Do you have plans to seek funding through other channels?
We are currently co-applying for a US DOE grant with a partner to help build the mobile truck. This will be awarded in April 2023 if successful.
Currently, the team is building relationships with parties interested in providing additional funds. The StartEngine campaign is our only open funding round at this time.
Again, thank you for your support. We are looking forward to working with you on the future of battery recycling.
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